From: Xin Long <lucien....@gmail.com>
Date: Tue, 11 Sep 2018 14:33:58 +0800
> In inet6_rtm_getroute, since Commit 93531c674315 ("net/ipv6: separate
> handling of FIB entries from dst based routes"), it has used rt->from
> to dump route info instead of rt.
>
> However for some route like cache, some of its information like flags
> or gateway is not the same as that of the 'from' one. It caused 'ip
> route get' to dump the wrong route information.
>
> In Jianlin's testing, the output information even lost the expiration
> time for a pmtu route cache due to the wrong fib6_flags.
>
> So change to use rt6_info members for dst addr, src addr, flags and
> gateway when it tries to dump a route entry without fibmatch set.
>
> v1->v2:
> - not use rt6i_prefsrc.
> - also fix the gw dump issue.
>
> Fixes: 93531c674315 ("net/ipv6: separate handling of FIB entries from dst
> based routes")
> Reported-by: Jianlin Shi <ji...@redhat.com>
> Signed-off-by: Xin Long <lucien....@gmail.com>
Applied and queued up for -stable, thanks Xin.
